Skipp - Looking at the cabling - TX side is normal;
but the receive side looks to be wired as 2 - 3 can
duplexers in parallel. How does this improve
rejection? Seems that IF you needed the parallel
duplexers to handle a LOT of tx power, that would be
okay, but does it help on the receive side?
And they only approached 100 dB...
Chuck
WB2EDV
- Original Message -
From: skipp025 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 28, 2007 3:02 AM
Subject: [Repeater-Builder] When 4, 6 or 8 Cavities just won't due...
Re: When 4, 6 or 8 Cavities just
It would seem like the middle and right columns were
originally a simple duplexer, then they added the left
column to that. If you can trust the labeling, the
bottom left is the TX input and the top right is the
RX input.
The middle and left columns have shorted loop stubs
attached to each
range. If nothing else it should be a good source of notch cans.
Milt
N3LTQ
- Original Message -
From: skipp025 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 28, 2007 3:02 AM
Subject: [Repeater-Builder] When 4, 6 or 8 Cavities just won't due...
Re: When 4, 6
I too was trying to figure out the harness. I've never seen something like
this before. I also saw only 3 cans in the transmit side. This must be a low
power duplexer, as these appear to be only a notch devices and there are only 3
cans to notch out the transmitter noise from getting into
: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Bob M.
Sent: Monday, May 28, 2007 8:04 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] When 4, 6 or 8 Cavities just
won't due...
It would seem like the middle and right columns were
originally
* Re: When 4, 6 or 8 Cavities just won't due...
Another Ebay gem:
DB PRODUCTS 9-CAVITY RADIO REPEATER
DUPLEXER-100DB-HAM
Ebay Item number: 250120910164
I don't know to be impressed or just laugh at all
the
hardware (number of cavities used).
cheers,
skipp
* The
@yahoogroups.com
Subject: [Repeater-Builder] When 4, 6 or 8 Cavities just won't due...
Re: When 4, 6 or 8 Cavities just won't due...
Another Ebay gem:
DB PRODUCTS 9-CAVITY RADIO REPEATER DUPLEXER-100DB-HAM
Ebay Item number: 250120910164
I don't know to be impressed or just laugh at all
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